Mealey's (January 15, 2019, 11:15 AM EST) -- BALTIMORE — Following a bench trial, a Maryland magistrate judge on Dec. 17 concluded that the children of a woman who died from an embolism in her lung failed to show that a treating physician’s negligence in failing to diagnose the condition was not a substantial factor in her death (Warren Walker, et al. v. United States, No. 16-3623, D. Md., 2018 U.S. Dist. LEXIS 211683)....